The sign looks oddly familiar to us, but we could not find another Mr. Banh Mi in San Francisco. But perhaps this is a relocation for the restaurant to outer Balboa? If you know, leave us a note in the comments.

If you’re not familiar with the banh mi sandwich, SFGate had this apt description and history of the popular food:

Sometimes called a Vietnamese sandwich or a Saigon sub, the lineage is largely French. The French introduced the baguette and delicacies like pate and cornichons during colonial times, and, as the years went by, their sandwich was slowly hybridized by the Vietnamese.

Wheat flour, which had to be imported, was cut with rice flour, which gave rolls their signature airiness. Cornichons became pickled carrots and daikon. Pricey goose and duck livers were replaced by pork and chicken livers.

Add in staple Vietnamese herbs and spices, and the modern banh mi was born.

No word yet on when they’ll open.

UPDATE: Readers tell us that it’s owned by the same family that runs Kim Son Vietnamese, directly across the street at 3614 Balboa. Mr. Banh Mi will be run by Jimmy Quach, the son of the owners of Kim Son. Johnny says he’ll let us know when he’s readying to open.